Not actual rule/spelling error but the last two huge horizontal scenery images of the PDF is really messing up some PDF readers like Preview in OS X.

This makes all other pages to scale down to really tiny size. I can naturally zoom in but that is just dump. Documents like these really should pick a page size and stick to it. Putting different sized pages is really bad layout decision unless you want to piss off your reader. Some PDF-readers will get around this but not all. I was able to remove the last pages with PDF editor program which is really the only way to fix the PDF.

Please fix the layout issue. Remove the last pages (and publish them separately) or at least rotate them and choose the same width as the other pages.